This case works pretty well on our Fire HD 8. It;s a little sloppier (if that makes sense) for our HD 10. My only complaint is that sometimes the magnets are too strong or something and it shuts my tablet off, even when opened and the cover is on the back. Still for the price, pretty hard to beat.
From a durability standpoint, they just seem to get more play in them as they get older and the faux leather does wear, but again for the price - hard to top.